Manganês e germinação de esporos de fungos micorrízicos arbusculares in vitro

Cardoso, Elke Jurandy Bran Nogueira; Navarro, R. B.; Nogueira, Marco Antônio

doi:10.1590/s0100-06832002000300025

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…High concentrations of Mn and Fe in the substrate can inhibit the germination of spores and mycelial growth ( Moreira and Siqueira 2002 ). Cardoso et al (2002) observed that an isolate of D. heterogama was more tolerant than others in relation to the Mn doses tested. The Ca can interfere in the permeability of the membranes and consequently in the colonization of the roots ( Moreira and Siqueira, 2002 ).…”

Section: Resultsmentioning

confidence: 86%

Optimization of the production of mycorrhizal inoculum on substrate with organic fertilizer

Coelho

Pedone-Bonfim

Silva

et al. 2014

Braz. J. Microbiol.

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The system for production of inoculum of arbuscular mycorrhizal fungi (AMF) using sand and vermiculite irrigated with nutrient solution is promising. However, organic amendments added to the substrate can stimulate sporulation of AMF and replace the nutrient solution. The aim of this study was to maximize the production of AMF (Acaulospora longula, Claroideoglomus etunicatum, Dentiscutata heterogama and Gigaspora albida) using selected organic substrates (vermicompost, coir dust and Tropstrato) together with sand and vermiculite. The production of spores varied among the tested AMF and according to the organic source added to the substrate. The vermicompost promoted higher sporulation of A. longula in relation to the other AMF and substrates. The Tropstrato® inhibited the sporulation of D. heterogama while the reproduction of C. etunicatum was not affected by the organic compounds. The inoculum of A. longula also showed a high number of infective propagules and promoted biomass accumulation in maize plants. The system of inoculum production using sand and vermiculite + 10% vermicompost favors the production of infective inoculum of A. longula with the fungus benefiting growth of corn plants.

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Section: Resultsmentioning

confidence: 86%

Optimization of the production of mycorrhizal inoculum on substrate with organic fertilizer

Coelho

Pedone-Bonfim

Silva

et al. 2014

Braz. J. Microbiol.

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show abstract

“…A series of limitations, such as the reduction in spore germination, extraradical mycelium development and sporulation of some AMF species, has been reported in the presence of excess heavy metals in the soil (Pawlowska & Charvat, 2004;Yang et al, 2015b). Cardoso, Navarro, and Nogueira (2002), working with Mn and in vitro germination of AMF spores, concluded that AMF spore germination was differently damaged between species and Mn 2+ doses. On the other hand, in soil contaminated by cadmium, Martins, R. Melloni, and E. G. P. Melloni (2017) reported different behavior between AMF species at the different doses of this element, thus demonstrating higher tolerance of some AMF to the excess of this metal.…”

Section: Resultsmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi in the Phytostabilization of Soil Degraded by Manganese Mining

Garcia¹,

Gomes²,

Filho³

et al. 2018

JAS

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Mining and processing of manganese (Mn) minerals are activities that may result in the generation of large amounts of wastes and serious environmental impacts. Several strategies have been employed to remediate areas with high Mn concentrations, but many of them imply high investments and high risk of secondary pollution. This study aimed to evaluate the phytostabilization potential of Mimosa caesalpiniaefolia Benth. in Mn mining soil influenced by inoculation with arbuscular mycorrhizal fungi (AMF). The experimental design was completely randomized, with four treatments [not inoculated (control), inoculated with Rhizophagus clarus; inoculated with Claroideoglomus etunicatum and inoculated with Rhizophagus clarus + Claroideoglomus etunicatum (Mix)], and four replicates. Inoculation with Mix and C. etunicatum had higher efficiency in protecting plants against excess Mn, due to the greater retention of this element in the roots and lower translocation to the shoots. Inoculation with R. clarus did not influence plant development and reduction of Mn contents in the shoots. The association of the AMF Mix and C. etunicatum with the species Mimosa caesalpiniaefolia Benth. enhances Mn phytostabilization in mining soils with high concentration of this element. The use of multivariate analyses proved to be an important tool with respect to the behavior of biometric, chemical and microbiological variables in mining soil with high Mn concentration.

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Symbioses of Plants with Rhizobia and Mycorrhizal Fungi in Heavy Metal-Contaminated Tropical Soils

2015

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Manganês e germinação de esporos de fungos micorrízicos arbusculares in vitro

Abstract: RESUMO(1) Recebido para publicação em setembro de 2001 e aprovado em março de 2002.

Cited by 5 publications

References 11 publications

Optimization of the production of mycorrhizal inoculum on substrate with organic fertilizer

Optimization of the production of mycorrhizal inoculum on substrate with organic fertilizer

Arbuscular Mycorrhizal Fungi in the Phytostabilization of Soil Degraded by Manganese Mining

Symbioses of Plants with Rhizobia and Mycorrhizal Fungi in Heavy Metal-Contaminated Tropical Soils

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